Re: JNU 2013 SSS DISCUSSION

Posted by vandita24x7 on Feb 14, 2014; 4:00pm
URL: http://discussion-forum.276.s1.nabble.com/JNU-2013-SSS-DISCUSSION-tp7584716p7584782.html

Yeah... u r right. So the answer is "C" not D

On Fri, Feb 14, 2014 at 6:02 PM, kangkan [via Discussion forum] <[hidden email]> wrote:

alrihgt..i figure out 90..answer is d... E(X^2)=var(x)+{E(X)}^2=2

E(z)=a1(E (X^2)) +a2(E(X2^2))...
      =2sigma(ai)

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